Old JavaScript Code Threates Web Sustainability

The following research paper describes the astonishing extent of old JavaScript code with know security problems on the web:

Thou shalt not depend on me: analysing the use of outdated JavaScript libraries on the web

What’s needed for better sustainability is a library that allows lookup of JS library by version, with known vulnerabilities. At the very least, design and maintenance documents for websites should include a strategy for fixing outdated JS libraries in the mix.